Explore more topics
Public ownership evidence

Zymeworks Inc. (ZYME) Ownership Disclosures

Read ZYME insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-10T07:40:50.020Z

Jump to a section

Read one actual disclosure before using it

Show the table · 1 row, 6 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-092026-10-09Schayowitz AdamS13,832Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-09 and its public availability date is 2026-10-09. Subtracting those calendar dates gives 0 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0002127119-26-000006 ↗13F 0001005354-26-000004 ↗13F 0001005354-26-000003 ↗

Recent Form 4 activity

Show the table · 1 row, 6 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-10-092026-10-09Schayowitz AdamS13,832Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Scroll sideways to compare all columns. Select a heading to sort.

VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-2611,935$298,852None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2619,435$508,031None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2537,744$986,628None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25986,628$37,744,000None
Assenagon Asset Management S.A.2026-06-302026-08-221,252,027$32,727,986None
SummitTX Capital, L.P.2026-06-302026-08-15210,802$5,510,364None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15570$14,894None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1565,248$1,705,583None
Quarry LP2026-06-302026-08-15210$5,489None
DIADEMA PARTNERS LP2026-06-302026-08-15142,132$3,715,330None
XTX Topco Ltd2026-06-302026-08-15125,877$3,290,425None
Vinva Investment Management Ltd2026-06-302026-08-1511,983$419,717None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15152,416$3,984,154None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15152,416$3,984,154None
Qube Research & Technologies Ltd2026-06-302026-08-15593,590$15,516,443None
OSAIC HOLDINGS, INC.2026-06-302026-08-15882$23,055None
Squarepoint Ops LLC2026-06-302026-08-1516,200$423,468None
Man Group plc2026-06-302026-08-15210,779$5,509,763None
MetLife Investment Management, LLC2026-06-302026-08-1527,884$728,888None
JANE STREET GROUP, LLC2026-06-302026-08-1517,437$455,803None
Nextech Invest Ltd.2026-06-302026-08-151,113,946$29,118,548None
LMR Partners LLP2026-06-302026-08-1582,500$2,156,550None
Legal & General Group Plc2026-06-302026-08-1531,220$815,965None
Legal & General Group Plc2026-06-302026-08-157,351$192,118None
Legal & General Group Plc2026-06-302026-08-154,589$119,934None
Manatuck Hill Partners, LLC2026-06-302026-08-15100,000$2,614,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15130,400$3,408,656Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1593,800$2,451,932Put
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC2026-06-302026-08-1518,185$475,356None
Prosight Management, LP2026-06-302026-08-15674,434$17,629,705None
Verdad Advisers, LP2026-06-302026-08-1566,688$1,743,224None
Ewing Morris & Co. Investment Partners Ltd.2026-06-302026-08-1510,850$283,619None
Granahan Investment Management, LLC2026-06-302026-08-15336,157$8,787,144None
SILVERCREST ASSET MANAGEMENT GROUP LLC2026-06-302026-08-15223,766$5,849,243None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15837$20,214None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1582,182$2,148,237None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1582$2,143None
Freestone Grove Partners LP2026-06-302026-08-15648$16,939None
CREDIT AGRICOLE S A2026-06-302026-08-1571,000$1,855,940None
HighVista Strategies LLC2026-06-302026-08-1534,013$889,100None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1531$810None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152,795$73,061None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15585$15,292None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1514$366None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15105,710$2,763,259None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152,147$56,123None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1530,886$807,360None
ROYAL BANK OF CANADA2026-06-302026-08-156,296$165,000None
ROYAL BANK OF CANADA2026-06-302026-08-152,501$65,000None
ROYAL BANK OF CANADA2026-06-302026-08-1513,856$362,000None

90-day public filing window, up to 50 source positions.

VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗SummitTX Capital, L.P. ↗Federation des caisses Desjardins du Quebec ↗Susquehanna Portfolio Strategies, LLC ↗Quarry LP ↗DIADEMA PARTNERS LP ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

Show the table · 0 rows, 5 columns

Scroll sideways to compare all columns. Select a heading to sort.

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.